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726 Commits

Author SHA1 Message Date
Michael Brown
129c6c3968 Network layer now works as a proof of concept 2006-04-28 14:13:50 +00:00
Michael Brown
1488cd3b73 Fix a couple of broken assertions, and align the buffer correctly. 2006-04-28 14:09:31 +00:00
Michael Brown
79f64eea55 Transmit the buffer contents, not the buffer descriptor... 2006-04-28 14:08:41 +00:00
Michael Brown
51feeab445 Add an explicit failure debug message 2006-04-28 14:07:41 +00:00
Michael Brown
084f6b18f7 Exclude bin directory from tags generation. 
Create something that might be usable as a symbol list for bochs'
internal debugger.
 2006-04-28 14:07:08 +00:00
Michael Brown
d8e99bf28f Gave up on adding POSIX errno's as required, and just added (almost) all 
of them in one go.

EBADIMG has been replaced by ENOEXEC, and EIMGRET by ECANCELED.
 2006-04-28 13:44:34 +00:00
Michael Brown
cfae86f6c8 Glenn managed to shrink .text by 5 more bytes. 2006-04-25 21:48:16 +00:00
Michael Brown
fee8b91015 D'oh 2006-04-25 12:56:18 +00:00
Michael Brown
7a82c3eca3 Added missing ssize_t 2006-04-25 12:55:23 +00:00
Michael Brown
cf3783b4ca Actually, it's probably a good idea to have packet buffers avoid 4kB 
crossings.
 2006-04-25 12:11:36 +00:00
Michael Brown
00a1de964d Update to use POSIX-like API. 2006-04-25 12:04:07 +00:00
Michael Brown
face774c4c Fixed erroneous comparison 2006-04-25 11:54:58 +00:00
Michael Brown
95f8a42930 Removed incorrect comment; malloc() is inefficient only when the 
alignment and size are both powers of two, and there's no way to
specify an alignment through the malloc() interface anyway.
 2006-04-25 10:41:49 +00:00
Michael Brown
4e92f29c9e Now passes trivial tests. free_memblock() needs neatening up. 2006-04-25 04:01:58 +00:00
Michael Brown
b601a7d355 Updated memory allocator to improve support for unaligned or partially 
aligned blocks.

Moved header to include/malloc.h, since we now also provide the
POSIX-like malloc()/free() pair.

Not yet tested.
 2006-04-25 03:30:46 +00:00
Michael Brown
2f0d412210 Add __constant_flsl(), because it's useful for finding out the next 
power-of-two up from a given constant via
  ( 1 << fls ( constant - 1 ) )

fls(), flsl(), ffs() and ffsl() appear in strings.h according to
POSIX.
 2006-04-24 23:00:32 +00:00
Michael Brown
a81f96998b Added missing headers required for compilation in Etherboot. 2006-04-24 19:35:10 +00:00
Michael Brown
455b76980f Added pkb_reserve(). 2006-04-24 19:34:51 +00:00
Michael Brown
26749951dc We have our own ARP layer now. 2006-04-24 19:19:13 +00:00
Michael Brown
fcf765e42d Add missing {register,free}_netdev(). 
Tie into existing driver API; we'll fix that up soon.
 2006-04-24 18:44:50 +00:00
Michael Brown
832e86246b gcc is rather over-aggressive about optimising out static data structures 
even when __atribute__ (( unused )) is correctly set...
 2006-04-24 18:31:37 +00:00
Michael Brown
4c4e4de18f (librm_base-1b) is already an offset; no need to apply OFFSET(). 
Doing so, in fact, seems to expose an assembler bug; (a-b-0) is
apparently not the same as (a-b).  Go figure.
 2006-04-24 18:29:47 +00:00
Michael Brown
824d6ffa7f Header rearrangement. 
I want to get to the point where any header in include/ reflects a
standard user-level header (e.g. a POSIX header), while everything that's
specific to gPXE lives in include/gpxe/.  Headers that reflect a Linux
header (e.g. if_ether.h) should also be in include/gpxe/, with the same
name as the Linux header and, preferably, the same names used for the
definitions.
 2006-04-24 15:42:49 +00:00
Michael Brown
53f78346bf Network API now allows for multiple network devices (although the 
implementation allows for only one, and does so without compromising on
the efficiency of static allocation).

Link-layer protocols are cleanly separated from the device drivers.

Network-layer protocols are cleanly separated from individual network
devices.

Link-layer and network-layer protocols are cleanly separated from each
other.
 2006-04-24 15:38:53 +00:00
Michael Brown
fdc2ee79db Network API now allows for multiple network devices (although the 
implementation allows for only one, and does so without compromising on
the efficiency of static allocation).

Link-layer protocols are cleanly separated from the device drivers.

Network-layer protocols are cleanly separated from individual network
devices.

Link-layer and network-layer protocols are cleanly separated from each
other.
 2006-04-24 15:33:06 +00:00
Michael Brown
0d97f0d482 Obviate uip_init(); our bss is zeroed at startup already. 2006-04-24 15:31:02 +00:00
Michael Brown
5423f876fb Don't bother poisoning lists; it costs code size. 2006-04-24 15:28:56 +00:00
Michael Brown
1d7cfd5acf Prototype now clashes with the macro in arch/i386. 2006-04-24 15:27:58 +00:00
Michael Brown
510ccb2900 Added __constant_memcpy() based on version in Linux's string.h. 
Added memswap().
 2006-04-24 15:25:25 +00:00
Michael Brown
b6b6a0b5fe First draft of a dynamic memory allocator 2006-04-24 15:21:18 +00:00
Michael Brown
e323d1a29b Add "net" directory. 
Avoid including debug information in bin/%.s output, since the whole
point is to have easy-to-read assembler.
 2006-04-24 15:20:01 +00:00
Michael Brown
6209bd873a First sketch of a new net device API. 2006-04-19 12:07:46 +00:00
Michael Brown
bdc8190c8d Remove the concept of the media-independent link-layer header and replace 
it with metadata in the pkb structure.  This is required since UNDI will
want to be able to parse the link-layer header without destroying it.
 2006-04-19 11:32:24 +00:00
Michael Brown
b89ccac02d Updated to remove obsolete constants 2006-04-19 02:11:56 +00:00
Michael Brown
3ca7dbe7ca Added the concept of a network interface (a network-layer concept) as 
separate from a network device (a link-layer concept).
 2006-04-19 02:09:08 +00:00
Michael Brown
d65a66606b Typo 2006-04-19 02:08:27 +00:00
Michael Brown
2558439ce4 First version, based on include/linux/list.h, stripped down to just 
those functions we are likely to need.

Still need to come up with a way of getting the linker to create
static lists using this linking mechanism.
 2006-04-19 02:05:50 +00:00
Michael Brown
d24042f0bb Update now that if_ether.h has moved. 2006-04-19 01:56:10 +00:00
Michael Brown
4f3581e99c Added ENOENT and EAFNOSUPPORT 2006-04-19 01:54:53 +00:00
Michael Brown
ab139ceda9 Added pkb_unput() and pkb_len(). 2006-04-19 01:54:24 +00:00
Michael Brown
744b895077 Make flags more efficient. 
Add 'raw' net_addr facility (needed for ARP).
 2006-04-19 01:53:49 +00:00
Michael Brown
49f933fbc3 Moved if_ether.h and if_arp.h to include/gpxe, for consistency with Linux 
kernel.

Removed obsolete struct arprequest from if_arp.h and put it in nic.c so
that nic.c will still compile.  ARP will very shortly be handled by
net/arp.c instead.
 2006-04-19 01:52:41 +00:00
Michael Brown
9f67ad9db0 First version. ARP protocol independence in less than the size of uIP's 
Ethernet-and-IPv4-only ARP module.  :)
 2006-04-19 01:43:56 +00:00
Michael Brown
363905e1b6 Add missing prototype 2006-04-19 01:42:33 +00:00
Michael Brown
02d342f38f First version 2006-04-19 01:42:03 +00:00
Michael Brown
0b561ce972 First sketch 2006-04-18 17:52:51 +00:00
Michael Brown
42b659f926 First version 2006-04-18 17:49:51 +00:00
Michael Brown
0864a73347 First version, based on the concepts in linux/skbuff.h 2006-04-18 17:47:01 +00:00
Michael Brown
1a60444fe4 Added netmask and gateway global options. 
Added iSCSI testing.
 2006-04-05 11:46:18 +00:00
Michael Brown
6446767258 First draft of iSCSI protocol support. Is capable of retrieving disk 
blocks.
 2006-04-05 11:44:56 +00:00
Michael Brown
9ea782d339 Make pcap_inject non-static, so that its prototype doesn't conflict with 
the real pcap_inject in the case where we do have it.
 2006-04-05 11:44:05 +00:00
Michael Brown
c8a7133e9f Added tcp_buffer, to give applications a zero-cost place to build data to 
be transmitted.
 2006-04-05 11:43:01 +00:00
Michael Brown
988bb50979 Added set_netmask() and set_gateway() 2006-04-05 11:41:15 +00:00
Michael Brown
ee058362fa We don't need to know anything about ARP 2006-03-24 17:39:05 +00:00
Michael Brown
90892d5ec7 Allow specifying the local IP address via --from. 2006-03-24 17:28:40 +00:00
Michael Brown
b44332eb7d Split non-TCP portions of the stack out into ip.[ch]. 
Added set_ipaddr().
 2006-03-24 17:22:09 +00:00
Michael Brown
1c607470e3 Put in a substitute pcap_inject() function, since earlier versions of 
libpcap are lacking the function.  For now, we always use the
substitute version, since there's no easy way to determine whether or
not we need it.
 2006-03-24 16:43:12 +00:00
Michael Brown
7e61f38799 Moved "hello world" protocol implementation out of prototester.c and into 
the first standalong uIP-based protocol module.
 2006-03-23 22:37:05 +00:00
Michael Brown
508dcdb303 Added container_of(). This seems about the best place to put it, since 
the definition of it uses offsetof(), and the two concepts are related.
 2006-03-23 22:07:21 +00:00
Michael Brown
99032becce Pick up the gPXE include files when building prototester. 2006-03-23 21:35:20 +00:00
Michael Brown
2299435f1c Added prototype for inet_ntoa, even though we don't have the function 
yet, in order to allow prototester.c to compile.  It might be worth
changing all the uses of "%@" in printf to use "%s" and inet_ntoa
instead, in order to improve the portability of our code.
 2006-03-23 21:34:25 +00:00
Michael Brown
a4a0244aa3 Moved uIP wrapper out of prototester.c and into proto/tcp.c. 2006-03-23 21:32:03 +00:00
Michael Brown
17c0253ca0 Add include/gpxe as a directory to scan. 
Exclude proto/uip, since uip.c and uip_arp.c both have global variables
called "c", which screws up doxygen's auto-generation of links to file
documentation when it encounters a file name such as "hello.c".
 2006-03-23 21:06:36 +00:00
Michael Brown
2bc7c746a6 Updated with "doxygen -u" from doxygen 1.4.4 2006-03-23 20:39:26 +00:00
Michael Brown
05b284399e Moved old tcp.h to old_tcp.h, to avoid name clash with new (uIP-based) 
tcp.h.
 2006-03-23 20:34:08 +00:00
Michael Brown
af23ff8a24 Assertions are now handled via the POSIX-like <assert.h>. 2006-03-23 19:33:57 +00:00
Michael Brown
55497b3402 Added missing #endif 2006-03-23 19:23:25 +00:00
Michael Brown
cb8e89de15 Added assert.h, with assert() defined (almost) as per POSIX, and 
linker_assert() defined as gPXE-specific.
 2006-03-23 17:28:51 +00:00
Michael Brown
531371efa2 Removed to make way for the uIP-based tcp.c. 2006-03-23 16:59:25 +00:00
Michael Brown
dde1c5ad18 Moved include/in.h to include/gpxe/in.h, so that it can be included by 
prototester.
 2006-03-23 16:45:01 +00:00
Michael Brown
eaf40883ff Add Makefile for hijack and prototester utilities. 2006-03-23 13:11:41 +00:00
Michael Brown
21c58729ae Add debug symbols to objects. (They will be stripped out of the final 
-Obinary build anyway, so it doesn't waste any space).
 2006-03-23 13:09:29 +00:00
Michael Brown
b2c94b32fc Make the application state a void *. 2006-03-23 13:08:06 +00:00
Michael Brown
218c26ff2b Can now also print data sent by the remote side. 2006-03-23 13:06:08 +00:00
Michael Brown
0d506a5c6a Now capable of sending "Hello world!" via TCP. 2006-03-23 12:25:28 +00:00
Michael Brown
911486fe41 Added basic http-specific option parsing 2006-03-22 22:35:32 +00:00
Michael Brown
5263a5abf4 Started adding structure to allow for separate protocol tests, with 
individual options.

Created the embryonic beginnings of a cleanly separated driver and
protocol stack API.
 2006-03-22 21:25:35 +00:00
Michael Brown
c32e83ad8d Skeleton version: contains device driver (connecting to network via 
hijack daemon) and a functional but very ugly and very primitive
wrapper around uIP.

This passes proof-of-concept testing; it successfully initiates a TCP
connection and responds to pings.
 2006-03-22 02:23:20 +00:00
Michael Brown
bb37bd47f8 Added from uip-0.9/uip/uip_arp.[ch] 2006-03-22 02:14:55 +00:00
Michael Brown
417e896f0a Remove htons(); it is provided elsewhere in Etherboot 2006-03-22 01:25:43 +00:00
Michael Brown
1c7c24f21f Basic, functional-but-extremely-pessimal versions (taken from 
uip-0.9/unix/uip_arch.c).
 2006-03-22 01:24:13 +00:00
Michael Brown
c5a9c38606 Terminate cleanly on SIGINT or SIGHUP 2006-03-21 17:48:33 +00:00
Michael Brown
e072baeb8c Use libpcap API to send/receive packets. 
Include automatic filtering (based on source MAC address of first
transmitted packet).

Proven to successfully elicit a ping response from a remote host.
 2006-03-21 16:50:25 +00:00
Michael Brown
4485df516c Basic structure in place: can daemonise, listen on a Unix domain 
socket, accept new connections, open a network interface using libpcap
and forward (all) traffic.
 2006-03-21 02:25:30 +00:00
Michael Brown
013ee958a1 These can come back when someone wants to support them 2006-03-17 14:16:05 +00:00
Michael Brown
7be870acd3 More purging 2006-03-17 14:14:36 +00:00
Michael Brown
b2909e547d They can come back when they have someone to support them. 2006-03-17 14:13:09 +00:00
Michael Brown
a2b15fd1fe GPXE code cleanup and purge. 2006-03-17 14:09:45 +00:00
Michael Brown
cdf1511d3e Prefix semantics have changed 2006-03-16 19:28:38 +00:00
Michael Brown
0e611719d2 Add uip on HEAD; it's safe to build, since nothing links against it at the 
moment.
 2006-03-16 19:18:12 +00:00
Michael Brown
d08ce741a4 Build in gpxe 2006-03-16 19:09:31 +00:00
Michael Brown
0806436d99 Remove accidental duplicate arising from merge 2006-03-16 19:04:19 +00:00
Michael Brown
239579efcf Build under gpxe 2006-03-16 19:02:18 +00:00
Michael Brown
d0777627c6 Back out duplication arising from the merge 2006-03-16 18:56:16 +00:00
Michael Brown
c4f25b637c Fix to compile under gpxe 2006-03-16 18:54:57 +00:00
Michael Brown
4ee0e0f85e Merge from Etherboot 5.4 2006-03-16 18:51:23 +00:00
Michael Brown
46e7bd5b52 Merge from Etherboot 5.4 2006-03-16 18:44:31 +00:00
Michael Brown
7e0a7a2e08 Merge from Etherboot 5.4 2006-03-16 18:30:54 +00:00
Michael Brown
28cefdccc4 Merge from Etherboot 5.4 2006-03-16 18:30:46 +00:00
Michael Brown
9b18017296 Merge from Etherboot 5.4 2006-03-16 18:15:48 +00:00
Michael Brown
bb7394b041 Merge from Etherboot 5.4 2006-03-16 17:59:51 +00:00
Michael Brown
708bbc43bc Merge from Etherboot 5.4 2006-03-16 17:40:55 +00:00
Michael Brown
9c8a69b673 Merge from Etherboot 5.4 2006-03-16 17:31:29 +00:00
Michael Brown
9b320c1ca4 Merge from Etherboot 5.4 2006-03-16 17:11:36 +00:00
Michael Brown
c3d5d01832 Merge from Etherboot 5.4 2006-03-16 17:05:38 +00:00
Michael Brown
5d28bae0f1 Fix up building with gcc 4.0.1 / gas 2.16.91 2006-01-17 01:47:41 +00:00
George Baum
bd9d4e0bd7 Reorder functions to match the linux driver. 
No code changes apart from commenting one unused function out.
 2005-07-11 19:26:12 +00:00
Timothy Legge
4184dc5c6a Fix COMET TxUnderrun issue 2005-06-17 20:11:10 +00:00
Geert Stappers
9dc2515d7e no need for depending on build library ("blib") 
when make is invoked without arguments
 2005-06-14 20:16:03 +00:00
Michael Brown
df9cbc23cc Added documentation and ASSERT() statements. 2005-06-06 12:01:19 +00:00
Michael Brown
33dbdda28e Allow data blocks to be less than sizeof ( struct buffer_free_block ) in 
size.  (The restriction on the size of free blocks remains.)
 2005-06-06 11:42:14 +00:00
Michael Brown
65a731bed5 Reduce BACKOFF_LIMIT to a hopefully more reasonable value. 2005-06-02 10:16:05 +00:00
Michael Brown
7d8adc25bc In multicast operation, the client still has a unicast local port. 2005-06-02 10:15:40 +00:00
Michael Brown
cbed5ed9ad Always include code for sending multicast packets. 2005-06-02 10:14:26 +00:00
Timothy Legge
95967adc8c Jan Kiszka provided a patch for the smc9000 for missing phy-setup 2005-06-02 01:26:37 +00:00
Michael Brown
f242f56a73 Rewritten to use the functions in tftpcore.c. 
Works with a non-multicast TFTP server (i.e. the fallback path works
fine).
 2005-06-01 22:26:48 +00:00
Michael Brown
be7897523d IGMP protocol now uses the generic background protocol mechanism. 2005-06-01 22:22:14 +00:00
Michael Brown
85a380530d Add generic mechanism for background protocols (e.g. ARP, IGMP) 2005-06-01 22:18:38 +00:00
Michael Brown
e0cf144218 IGMP functions separated out from nic.c 2005-06-01 21:18:31 +00:00
Michael Brown
698e87277f Don't try to fetch another packet once we've reached EOF. 2005-06-01 19:13:06 +00:00
Michael Brown
fa17bf0917 Make rfc2090 multicast option optional 2005-06-01 19:10:25 +00:00
Michael Brown
55771a462d Re-order functions for more logical documentation 2005-06-01 18:02:24 +00:00
Michael Brown
f2198e8a65 Don't choke on duplicate OACK packets. 
Make await_tftp() static and create tftp_get() for fetching the next TFTP
packet instead.
 2005-06-01 18:00:01 +00:00
Michael Brown
378e922f8f Remove prototypes for obsolete functions 2005-06-01 17:57:27 +00:00
Michael Brown
c8d6c4864f Doxygenation 2005-06-01 13:28:07 +00:00
Michael Brown
53a4436d94 TFTP upgraded to use a core function library (in tftpcore.c) which will be 
shared between TFTP, TFTM and MTFTP protocols.
 2005-06-01 13:13:05 +00:00
Michael Brown
0b048e9cfb Now have enough functions to implement a standard TFTP client in around 50 
lines of code.
 2005-06-01 11:01:59 +00:00
Michael Brown
7d63b39e3d Add tftp_ack() and tftp_error() 2005-05-31 15:21:33 +00:00
Michael Brown
8ae966720d First version 2005-05-31 14:47:58 +00:00
Geert Stappers
5265975334 patch of Helge Wagner 2005-05-31 11:32:45 +00:00
Michael Brown
59582db29d Documented remainder of PXE TFTP API calls. 2005-05-27 16:47:45 +00:00
Michael Brown
92f1a5c677 Documented the purpose of the two timeout fields in 
s_PXENV_TFTP_READ_FILE.
 2005-05-27 16:47:16 +00:00
Michael Brown
2ffc960e67 Added diatribe about the mismatch between the PXE spec and the TFTP 
protocol, and how we will work around it.
 2005-05-27 11:44:46 +00:00
Michael Brown
97675c7129 Refer to implementation note on IP routing. 2005-05-27 11:37:09 +00:00
Michael Brown
6e74dc3460 Added implementation note on IP routing. 
Added reason for min value of 512 on s_PXENV_TFTP_OPEN::PacketSize.
 2005-05-27 11:36:36 +00:00
Michael Brown
aeb984a1a9 Thoughts on how to coerce the PXE TFTP API into something resembling 
the TFTP protocol.
 2005-05-26 18:52:12 +00:00
Michael Brown
572483cc59 Separate out the documentation of the PXE API from the documentation of 
the Etherboot implementation (i.e. don't do what Intel did).
 2005-05-24 17:00:55 +00:00
Michael Brown
2579442865 Remove the annoying #include lines 2005-05-24 00:25:50 +00:00
Michael Brown
0e494614b5 Some versions of doxygen seem to object to "@ret None" or similar. 2005-05-24 00:11:25 +00:00
Michael Brown
7b423c0988 Fixes for gcc >= 3.2 from Georg Baum 2005-05-23 23:47:54 +00:00
Michael Brown
809933d9f7 Split PXE code into preboot, udp, tftp, undi and loader units. 
PXE code now compiles without errors (though it won't actually work).
 2005-05-23 23:32:56 +00:00
Michael Brown
13de295b56 Added interface/pxe directory 2005-05-23 23:31:59 +00:00
Michael Brown
079b5d5527 Moved pxe_loader.c to pxe_image.c to avoid name clash 2005-05-23 23:05:45 +00:00
Michael Brown
8fcb6448bd Moved pxe_errors.c to pxe/interface/ 2005-05-23 22:47:21 +00:00
Michael Brown
8becf0f65f Rearranging PXE header files 2005-05-23 22:45:48 +00:00
George Baum
c4c05bbbf7 the uncontroversal gcc 4.0 compilation fixes 2005-05-23 19:30:37 +00:00
Michael Brown
fd49648a35 Separated out the Etherboot-specific parts of the old pxe.h header. 2005-05-23 16:37:05 +00:00
Michael Brown
b9c7468dea Added PXENV+ and !PXE structures, and the loader API. 2005-05-23 16:26:49 +00:00
Michael Brown
442ba12b9e Finished documenting the UNDI API. 2005-05-23 13:57:23 +00:00
Michael Brown
cd9742e054 Documented up to PXENV_UNDI_CLOSE 2005-05-23 11:00:09 +00:00